Shell effects and the fluid dynamical model for nuclear giant resonances

Shell Effects and the Fluid Dynamical Model for Nuclear Giant Resonances

We discuss the fluid dynamical approach to nuclear giant resonances using imposed scahng type oscillations. We calculate the response of the intrinsic kinetic energy to the lsoscalar twist mode (a rrr = 2) quantum mechanically and show that for thxs mode as well as for the lowest normal parity modes (a rrr = 0 +, 1and 2+), the static single particle effects lead to the same restoring forces as ...

Nuclear Giant Resonances and Linear Response

We search for nonlinear effects in nuclear giant resonances (GRs), in particular the isovector dipole and the isoscalar quadrupole modes. To that end, we employ a spectral analysis of time-dependent Hartree-Fock (TDHF) dynamics using Skyrme forces. Based on TDHF calculations over a wide range of excitation amplitudes, we explore the collectivity and degree of harmonic motion in these modes. Bot...

Effective interactions for the nuclear shell model

Various perturbative and non-perturbative many-body techniques are discussed in this work. Especially, we will focus on the summation of so-called Parquet diagrams with emphasis on applications to finite nuclei. Here, the subset of two-body Parquet equations will be discussed. A practical implementation of the corresponding equations for studies of effective interactions for finite nuclei is ou...

Effective Interactions for the Nuclear Shell Model

Beyond the nuclear shell model

© 2007 American Institute of Physics, S-0031-9228-0711-030-9 Nuclei, the fuel that burns in stars, make up 99.9% of all baryonic matter in the universe.1 The complex nature of the nuclear forces among protons and neutrons generates a broad range and diversity of nuclear phenomena. Developing a comprehensive description of nuclei and their reactions represents one of the great intellectual oppor...